Drive device with radio frequency control

Abstract

A drive device with radiofrequency control includes a motor, a radiofrequency receiver for receiving radiofrequency signals and for controlling the motor. Electrical conductors provide power for both the motor and the radiofrequency circuit. The antenna is connected to the radiofrequency receiver and is non-galvanically electrically coupled one of the conductors at radiofrequencies. The control circuit receives radiofrequency signals directly through the antenna or via radiofrequency coupling from one of the power supply conductors. The device has increased ability to receive radiofrequency signals independent of its environment.

1. A drive device for a home automation product having:
 a motor; 
 a radiofrequency receiver for receiving radiofrequency signals and for controlling the motor; 
 electrical conductors for providing electrical power from a main power source to the motor and to the radiofrequency receiver; 
 an aerial antenna connected to the radiofrequency receiver configured to receive radiofrequency signals; 
 wherein a portion of the radiofrequency signals pass from at least one electrical conductor to the aerial antenna, the aerial antenna and the at least one conductor are electrically isolated at a frequency of the electrical power supplied to the motor and the radiofrequency receiver; and 
 wherein a power level of radiofrequency signals received by the radiofrequency receiver due to radiofrequency coupling between the antenna and the at least one conductor is greater than 5% of total power of radiofrequency signals received by the radio frequency receiver. 
 
     
     
       2. The device of  claim 1 , wherein the a power level of radiofrequency signals received by the radiofrequency receiver due to radiofrequency coupling between the antenna and the at least one conductor is less than 50% of total power of radiofrequency signals received by the radio frequency receiver. 
     
     
       3. The device of  claim 1 , wherein the antenna is mechanically coupled to the at least one conductor. 
     
     
       4. The device of  claim 1 , wherein the antenna is a monopole antenna. 
     
     
       5. The device of  claim 4 , wherein the antenna has a length close to a quarter wavelength of the radiofrequency signals received by the radiofrequency receiver. 
     
     
       6. The device of  claim 1 , further including a motor tube in which the motor, the radiofrequency receiver and the antenna are placed. 
     
     
       7. The device of  claim 6 , wherein the tube is made of metal. 
     
     
       8. The device of  claim 1 , wherein the antenna is formed by a track of a printed circuit. 
     
     
       9. The device of  claim 8 , wherein the track forming the antenna lies parallel to a track on the printed circuit forming a portion of the at least one conductor. 
     
     
       10. The device of  claim 1 , wherein a power level of radiofrequency signals coupled into the antenna from the at least one conductor is less than 95% of total power of radiofrequency signals received by the radio frequency receiver. 
     
     
       11. The device of  claim 1 , wherein the a power level of radiofrequency signals coupled into the antenna from the at least one conductor is more than 50% of total power of radiofrequency signals received by the radio frequency receiver. 
     
     
       12. A drive device for a home automation product having:
 a motor; 
 a radiofrequency circuit for receiving and transmitting radiofrequency signals and for controlling the motor; 
 electrical conductors for providing electrical power from a main power source to the motor and to the radiofrequency circuit; 
 an antenna connected to the radiofrequency circuit configured to receive and transmit radiofrequency signals; 
 wherein a portion of the radiofrequency signals pass from at least one electrical conductor to the antenna or from the antenna to the at least one electrical conductor, the antenna and the at least one conductor are electrically isolated at the frequency of the electrical power supplied to the motor and the radiofrequency circuit; and 
 wherein a power level of radiofrequency signals received by the radiofrequency receiver due to radiofrequency coupling between the antenna and the at least one conductor is greater than 5% of total power of radiofrequency signals received by the radio frequency receiver. 
 
     
     
       13. A drive device for a home automation product including in a casing:
 a motor; 
 a radiofrequency receiver for controlling the motor; 
 an aerial antenna connected to the radiofrequency receiver, the antenna configured to receive radiofrequency signals, 
 electrical conductors for conveying electrical power from a source of AC power to the motor and to the radiofrequency receiver; 
 wherein the antenna and at least one conductor are electrically isolated at a frequency corresponding to the source of power, a first portion of radiofrequency signals pass through the casing and a second portion of radiofrequency signals pass between the at least one electrical conductor and the aerial antenna; and 
 wherein a power level of radiofrequency signals received by the radiofrequency receiver due to radiofrequency coupling between the antenna and the at least one conductor is greater than 5% of total power of radiofrequency signals received by the radio frequency receiver.